pumpdotfunsdk

README

Pump.fun Go SDK

A SDK allowing you to create, buy and sell pump.fun tokens in Golang.

Installation

go get github.com/nnqq/pumpdotfun-go-sdk

Usage

package main

import (
	"log"
    "os"
	"context"

	// General solana packages.
	"github.com/gagliardetto/solana-go"
	"github.com/gagliardetto/solana-go/rpc"
	"github.com/gagliardetto/solana-go/rpc/ws"

	// Pump.fun Go SDK.
	pumpdotfunsdk "github.com/nnqq/pumpdotfun-go-sdk"
)

type Client struct {
	RpcClient *rpc.Client
	WsClient  *ws.Client
}

func getClient(rpcUrl string, wsUrl string) *Client {
	rpcClient := rpc.New(rpcUrl)
	wsClient, err := ws.Connect(context.Background(), wsUrl)
	if err != nil {
		log.Fatalln("ws connection error: ", err)
	}
	return &Client{RpcClient: rpcClient, WsClient: wsClient}
}

func main() {
	privateKey, err := solana.PrivateKeyFromBase58(os.Getenv("PRIVATE_KEY"))
	if err != nil {
		log.Fatalln("please set PRIVATE_KEY environment variable:", privateKey)
	}
	rpcURL := rpc.MainNetBeta_RPC
	wsURL := rpc.MainNetBeta_WS
	c := getClient(rpcURL, wsURL)
	mint := solana.NewWallet()
	err = pumpdotfunsdk.CreateToken(
		c.RpcClient,
		c.WsClient,
		privateKey,
		mint,
		"TEST", // symbol
		"TEST", // name
		"https://example.com", // metadata uri
		0.1, // buy 0.1 SOL
		0.98, // 2% slippage
	)
	if err != nil {
		log.Fatalln("can't create token:", err)
	}
}

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

BSD-3-Clause license, because FreeBSD is the best OS

Documentation

Index

• func BuyToken(rpcClient *rpc.Client, wsClient *ws.Client, user solana.PrivateKey, ...) (string, error)
• func CreateToken(rpcClient *rpc.Client, wsClient *ws.Client, user solana.PrivateKey, ...) (string, error)
• func SellToken(rpcClient *rpc.Client, wsClient *ws.Client, user solana.PrivateKey, ...) (string, error)
• func SetDevnetMode()
• func SolToLamp(sol float64) uint64
• type BondingCurveData
  • func (b *BondingCurveData) String() string
• type BondingCurvePublicKeys

Functions

func BuyToken

func BuyToken(rpcClient *rpc.Client, wsClient *ws.Client, user solana.PrivateKey, mint solana.PublicKey, buyAmountSol float64, percentage float64) (string, error)

buyToken buys a token from the bonding curve. The amount is the amount of tokens to buy, and the sol is the amount of SOL to pay. The mintAddr is the address of the mint of the token. This function will send a transaction to the network to buy the token. This function will return an error if the transaction fails.

func CreateToken

func CreateToken(rpcClient *rpc.Client, wsClient *ws.Client, user solana.PrivateKey, mint *solana.Wallet, name string, symbol string, uri string, buyAmountSol float64, percentage float64) (string, error)

func SellToken

func SellToken(rpcClient *rpc.Client, wsClient *ws.Client, user solana.PrivateKey, mint solana.PublicKey, sellTokenAmount uint64, percentage float64, all bool) (string, error)

func SetDevnetMode

func SetDevnetMode()

SetDevnetMode sets the pump.fun program addresses to the devnet addresses. It is important to call this function if you are using the devnet.

func SolToLamp

func SolToLamp(sol float64) uint64

Types

type BondingCurveData

type BondingCurveData struct {
	RealTokenReserves    *big.Int
	VirtualTokenReserves *big.Int
	VirtualSolReserves   *big.Int
}

BondingCurveData holds the relevant information decoded from the on-chain data.

func (*BondingCurveData) String

func (b *BondingCurveData) String() string

type BondingCurvePublicKeys

type BondingCurvePublicKeys struct {
	BondingCurve           solana.PublicKey
	AssociatedBondingCurve solana.PublicKey
}